Hello all ... I'm just another amateur. One of my photographic interests is photographing traditional and bluegrass music onstage at small venues, usually outdoor festivals. This is a world apart from big-name rock concert photography -- a totally different environment. This kind of music is generally done outdoors, under natural lighting (during the day), and relatively basic stage lighting after dark. Crowds are quite calm and reserved, not boisterous or rowdy (as at your typical rock show or bar). I've been using a SONY a58 (APS-c) and a Tamron 70-300 (but the lens is designed for full-frame, so the actual focal length is multiplied a bit... up to about the equivalent of 450mm or so). One problem I've encountered -- going all the way back to the 70's with film-based SLR's -- was that it's difficult when photographing performers to "catch them" at their most complimentary moment. Even shooting at several frames per second, it's an iffy proposition to get a shot that I really like. By a "shot that I really like", I mean one that the musician would feel is most complimentary to him or her. As anyone who's done this kind of shooting knows, it's all-to-easy to catch a singer in an UNflattering moment, facial-wise, etc. You can end up throwing many (or most) of the images out, even if they are otherwise technically good. With the advent of 4k video, I've been thinking of getting a camera that has 4k capability, and subsequently changing the entire paradigm of how I take pics at a show. Instead of taking individual shots (or short bursts of shots), I believe I could get results that are as good or better by recording, say, 30 seconds or a minute of video @4k. I could then review these clips frame-by-frame and cull the best stills from them. Even if I only saved one frame from 100, it might actually work better. So... I'm wondering if there's anyone reading that has actually tried 4k-to-stills like this? Which cameras are the best at it? Thanks for reading this far!